ISHS Acta Horticulturae 796: International Conference on Ripening Regulation and Postharvest Fruit Quality
CELL WALL-MODIFYING ENZYME ACTIVITIES AFTER STORAGE OF 1-MCP-TREATED PEACH FRUIT |
| Authors: | A. Ortiz, I. Lara |
| Keywords: | controlled atmosphere, endo-(1-4)-β-D-glucanase (EGase), polygalacturonase (PG), pectate lyase (PL), pectin methylesterase (PME) |
| Abstract:
Modifications of the cell wall are believed to underlie changes in fruit firmness and texture, driven by a number of related enzyme activities the extent and the contribution of which differ widely among species. Softening of peach (Prunus persica L. Batsch) fruit is usually rapid at ambient temperature, and limits considerably commercial life of produce. In this work, different cell wall-modifying activities were assessed in fruit of a late-harvesting peach cultivar (‘Tardibelle’) after treatment with 1-methylcyclopropene (1-MCP) followed by cold storage for 21 days under either air or controlled atmosphere. 1-MCP treatment was effective in preserving firmness of air- but not of CA-stored fruit. The effects of treatment on the different cell wall-modifying enzyme activities considered are discussed. | |
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